( 29ot 7 
quoted by us, enter in elaborate details about the manner in which 
the axis-lines') of the extremity behave. 
In Fig. XXVIII I give a scheme of the demarcation-line between 
the strychnine-segmental-zones of ZII, III, IV, and SI, as its course 
was found to be according to my data, a line, as already stated 
before, perfectly identical with the dorsal axis-line of the extremity, 
described by WINKLER and VAN RIJNBERK. 
This line ends at the point, lying proximo-lateral on the thigh, which 
is common to the 1. V, 4. VI and “4. VII zones, whence these zones 
diverge like the sectors of a fan, largely overlapping one another. 
And now the ventral axis-line. 
Fig. XXVIII Fig. XXIX. 
——~ ® = demarcation-line between  ----==demarcation-line between strych- 
strychnine-segmental zones of L. II, Il, nine-segmental zones of L. II, Ill, IV, 
IV, and SI. V, and SI. 
bidiaeres = boundary of zone of L.V. seanees — caudal boundary of the zone of 
+++= , ED L.A after the demarcation-line. 
wenn te ly ee aed VL, +++ = caudal boundary of the zones of 
L. II and IV after the demarcation-line. 
Basing their conclusion on their “normal” material, but likewise 
on the abnormal cases and especially on their case “dog 19”, 
1) As is well known, SHERRINGTON indicates as the characteristic of his axis 
lines a functional specific quality, viz. the unimportant measure of the “overlapping” 
of the dermatomata bounding one another in that region, whilst Bork for his 
“differential boundary”, which is identical with this axis line, gives a morphological 
characteristic, indicating as such the demarcation-line between dermatomata origin- 
ally not lying next to one another, but pushed into each other’s neighbourhood 
by the development of the extremity during its ontogenesis. 
